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3D model (JSmol) | |
ECHA InfoCard | 100.032.159 |
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Properties | |
Chemical formula | Rb2Te |
Molar mass | 298.54 g/mol |
Appearance | yellow-green powder |
Melting point | 775 °C (1,427 °F; 1,048 K) |
Related compounds | |
Other anions | Rubidium oxide Rubidium sulfide Rubidium selenide Rubidium polonide |
Other cations | Lithium telluride Sodium telluride Potassium telluride Caesium telluride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). N verify (what is ?) Infobox references |
Rubidium telluride is the inorganic compound with the formula Rb2Te. It is a yellow-green powder that melts at either 775 °C or 880 °C (two different values have been reported). It is an obscure material of minor academic interest.
Like other alkali metal chalcogenides, Rb2Te is prepared from the elements in liquid ammonia.
Rubidium telluride is used in some space-based UV detectors.
The compound has several polymorphs. At room temperature, ω-Rb2Te is a metastable antiflourite type structure, and transforms to α-Rb2Te upon heating, which is a PbCl2 type structure.
References
- Stöwe, K.; Appel, S. (2002). "Polymorphic Forms of Rubidium Telluride Rb2Te". Angewandte Chemie International Edition. 41 (15): 2725–30. doi:10.1002/1521-3773(20020802)41:15<2725::AID-ANIE2725>3.0.CO;2-G. PMID 12203467.
- Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1.
- Alay-e-Abbas, S.M.; Shaukat, A. (2011). "First principles study of structural, electronic and optical properties of polymorphic forms of Rb2Te". Solid State Sciences. 13 (5). Elsevier BV: 1052–1059. doi:10.1016/j.solidstatesciences.2011.01.021. ISSN 1293-2558.
External links
- Sangster, J.; Pelton, A. D. (1997). "The Rb-Te (rubidium-tellurium) system". Journal of Phase Equilibria. 18 (4): 394. doi:10.1007/s11669-997-0068-9.
- "Rubidium compounds: dirubidium telluride". WebElements: the periodic table on the web. WebElements. Retrieved 17 November 2011.
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